Sulaymon Eshkabilov
research interests: vibrations, optimal control, system modeling and simulation, mechatronics... coding
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MATLAB Central Treasure Hunt finisher badge
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Answer 50 questions that were unanswered for more than 30 days
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Content Feed
Defining a function for a vector of values, while keeping two variables unknown
% Here is the complete solution syms y z A =1:5; F = @(A, y, z) sum(A+y+z); FF = (F(A, y,z))
3 dagar ago | 0
How to add a .png image to be published as a pdf output file
Note the file extension - Part1.jpg That looks like that in your code the file extension is NOT *.png but *.jpg Your image fi...
3 dagar ago | 0
Defining a function for a vector of values, while keeping two variables unknown
Supposedly, this is what you are trying to achieve: syms y z A = magic(3); F = @(A, y, z) cumsum(A+y+z); FF = (F(A, y,z))
3 dagar ago | 0
dot product and indexing
The explantion is as follows: % Step 1. Comparing every individual value (element of) of NCol row vector (row matrix) % with ...
3 dagar ago | 0
How to add the count of iterations and relative error to the code?
Here are how you can obtain the final iteration and rel./abs error values when the roots are found. function root = newton(fun...
3 dagar ago | 0
I want to solve solution for Equation which is behaving like both ODE and DDE
You can try to employ Laplace and inverse Laplace transforms, laplace() and ilaplace()
3 dagar ago | 0
How do I create a for loop with fields of structures?
You can try to work with fieldnames() and getfield() names, e.g.: Fnames = fieldnames(Global_Data); for ii = 1:length(Fnames) ...
5 dagar ago | 1
Two area three unit thermal power system
In your m-file, one of the variables is not initialized correctly, see: ... b1=0.4249; b2=0. % ERR 4249...
5 dagar ago | 0
Index is out of range when creating 3D arrray
If NUM_data = 40, then your code should sth like this one: ... for n = 1:NUM_data X(:,:,n) = dlmread(list(n)); end ....
5 dagar ago | 0
Non linear regression: Matlab function similar to Excel solver ???
MATLAB's fitnlm() builtin function works for nonlinear regression analysis in your exercise you can use it. See this help docume...
5 dagar ago | 0
Converting an animated time step 2D plot into 3D
You can employ meshgrid().
5 dagar ago | 0
How do I insert Nan values into a list, if there isn't a file which has a specific name? when exporting column values of multiple files into new file.
The data (nV) import and augmentation from the data files can be done using readmatrix(), strcat(). E.g.: DS =[]; for ii = 1:5...
5 dagar ago | 0
Trouble using the system command with special characters
One ' sign is missing before 1st comma "," datenum = str2num(num); system('convert −delay 65 −loop 0 [ea','_',KXXX,'_',datenum...
5 dagar ago | 0
Mortgage repayment option in matlab
... MP =(HP.*(MR/12).*(1+MR/12).^360)./(((1+MR/12).^360)-1)
6 dagar ago | 0
| accepted
Having Unrecognized function or variable (name)
Note that the assigned variable value for keyGen() has to be predefined or initialized before assigning its value to another var...
6 dagar ago | 0
How many terms of series are required to get accuracy upto three decimal point. That is series sum correct upto 3.141
Indeed, it is working ok. Here is a test with 0.0001 decimal accuracy. There is one minor point that needs to be fixed withing f...
6 dagar ago | 0
Reading all columns and rows of a matrix in a for loop
Your code should work correctly according to your described statements and variable sizes.
6 dagar ago | 0
Determine the rocket's equation of motion
In your code, you need to make some corrections, e.g.: ... disp(t1); disp('Tai thoi diem nay ten lua da ra ngoai vu tru va kh...
6 dagar ago | 0
Question
Why the following simple calculation is NOT consistent
Here are simple multiplication and division of scalars but the results are not consistent. What is causing this and how to make ...
20 dagar ago | 1 answer | 0
1
answerReading a variable that have different names in different data files
Have you tried this ways of reading data, e.g.: for k = 1 : nfiles fullFileName = fullnames{k}; %reading the file as a t...
22 dagar ago | 0
How to read a very large number, say of 700 digits?
A good solution for this exercise is vpi() fcn developed by John D'Errico: https://www.mathworks.com/matlabcentral/fileexchange...
23 dagar ago | 1
How to subtract background from a leaf image .
You shall use ROI mask: https://www.mathworks.com/help/images/specify-roi-as-binary-mask.html Here are a couple of threads on ...
23 dagar ago | 0
Array of Structures to Structure of arrays
Jan is right that your questions are not quite clear for the reader as described here. But what I've understood is the followin...
24 dagar ago | 0
Trying to plot multiple Euler curves with 3 different step values.
Here is the corrected complete code that computes x1, x2, x3 along with t1, t2, t3 and plots their values accordingly: a = 0; ...
24 dagar ago | 0
Trying to plot multiple Euler curves with 3 different step values.
There are a few unknowns and flaws in your code, e.g.: N, x1, x2, x3 are not known Within loops: N=60, N = 300, N = 3000 are n...
24 dagar ago | 0
Do a plot of the messages from 24 hours. Hour by Hour
Easy solution might be this, e.g.: N = numel(Time_AIS1); figure(1) stem(1:N, Time_AIS1), xlabel('Hour'), ylabel('# of message...
24 dagar ago | 0
how to create on an efficient way zeros in a symbolic matrix?
syms x n=4; A=sym(zeros(n,2)); % A(:,1) = zeros(n,1); % NOT Necessary % A([1:n-1],2) = 0; % NOT Necessary A(n,[...
24 dagar ago | 0
Undesired Graph for Transmissibility vs Frequency.
This is how you should plot it in this way: ... T4=sqrt((1+(2.*fr4.*z).^2)./((1-fr4.^2).^2+(2.*fr4.*z).^2)); loglog(om, T1+...
24 dagar ago | 0
| accepted
Issues plotting ode in a for loop
There are a couple of "hold on" s are missing and thus, not all simulated data get plotted. Here is the corrected part of the co...
24 dagar ago | 0
Would somebody please tell me whether the values are the same or not?Transition code from Session to DataAcquisition Interface
The vals should be the same.
24 dagar ago | 0
